It is possible that the main title of the report Marfan Syndrome is not the name you expected. Please check the synonyms listing to find the alternate name(s) and disorder subdivision(s) covered by this report.
As Jenny points out, being able to lisp the alphabet song at age two has little to do with 'knowing' the alphabet. And, yes, most children learn the letters by sight and sound in kindergarten, although most are capable of learning this information sooner if diligently taught by parents or others.
Milestones for your toddler at 12-18 months: 1  Recognizes his or her name. 2  Understands ânoâ. 3  Understands simple instructions.  Points and gestures to call attention to an event or to show what they 1  want. Imitates (copies) familiar words.  Waves good-bye and plays Pat-a-Cake.